package com.blog.handler.security;

import com.alibaba.fastjson.JSON;
import com.blog.domain.ResponseResult;
import com.blog.enums.AppHttpCodeEnum;
import com.blog.utils.WebUtils;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.InsufficientAuthenticationException;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component
public class AuthenticationEntryPointImpl implements AuthenticationEntryPoint {
	@Override
	public void commence(HttpServletRequest Request, HttpServletResponse Response, AuthenticationException e) throws IOException, ServletException {
		e.printStackTrace();
		//响应给前端
		ResponseResult result = null;
		if (e instanceof BadCredentialsException){
			result = ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_ERROR.getCode(),e.getMessage());
		} else if (e instanceof InsufficientAuthenticationException){
				result = ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);

		}
		else{
			result = ResponseResult.errorResult(AppHttpCodeEnum.SYSTEM_ERROR.getCode(),"认证或者授权失败");

		}
		WebUtils.renderString(Response, JSON.toJSONString(result));
	}
}
